In the Line of Duty

[dahrling]

There are two kinds of guilt: Guilt by commission and guilt by omission. So the entire group is guilty.

If the entire police department is guilty, then they all have either committed a crime, or observed one happen. Again, this is a gross exaggeration, and can be considered libel. 

No one is blaming an entire group. Saying X or Y group is Z is not implying the entire group is Z, it is merely stating that, as a general rule, that's what happens. When I say cops are racist, I'm not saying all cops are factually racist, I'm merely implying that institutionally there are racist trends in the police. This is something people should understand fully before making mistakes and using the #NotAllCops hashtag (no one is saying that)

If what you mean to say is "there are cops that are corrupt", then that's what you say. You mustn't say "all cops are corrupt", because you'd be slandering by saying so.